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There are a lot of great benefits to having central heating with a gas boiler, but every once in a while, you are likely to encounter a problem. While it is possible that the problem you have will be unique, the vast majority of the time you are likely to find that your gas boiler issue is a common one. This means that finding the right solution will be a lot easier and quicker than what you thought.

A lot of boiler problems can actually be avoided by having a regular boiler service, we recommend at least once a year.

In this short post I am going to cover the six most common problems you are likely to have with your gas boiler.

  1. No Hot Water
  2. Boiler Leaking Or Dripping
  3. Odd Noises
  4. Extinguished Pilot Light
  5. Low Pressure Boiler
  6. Problems With The Thermostat

Boiler Repair Middleton Leeds LS10

1. No Hot Water

Essentially, your gas boiler is not doing its job when this happens, and there are a few potential causes.

  • A diaphragm or airlock is broken.
  • There is a low level of water.
  • There may be something wrong with the thermostat.
  • One of the motorised valves has failed.


The first and easiest things for you to check are the thermostat and the boilers water pressure. If it is any one of these then follow the boiler manufacturers guidelines for fixing these problems. If it is not any of the above then you should contact a qualified and Gas Safer registered boiler engineer to investigate the problem safely.

2. Boiler Leaking Or Dripping

Drips and leaks are an obvious symptom of a potentially more serious problem, but unless you are qualified to do so you should not try to figure out the problem yourself. Many of the causes for your boiler to be having drips or leaks will require a qualified boiler engineer to repair them. Leaks and drips are often caused by a broken pressure valve or pump seal. Once it is repaired, you may need to turn down your boiler pressure, the boiler engineer will be able to advise you on this.

3. Odd Noises

Perhaps the most noticeable of all boiler problems, is when your gas boiler begins to make strange noises, such as gurgling or banging. It is likely that air trapped within the system is the problem, but it could also be due to low water pressure. However, the problem may be more serious, such as the boiler reaching the end of its life and you needing a new boiler fitted.

4. Extinguished Pilot Light

The fix for an extinguished pilot light is easy, just relight it. But before doing that you should check out the system to determine if there is a more serious problem first. Problems you might find include:

  • A nearby draught blowing out the light.
  • Build up near or around the light that puts it out.
  • The supply of gas may be stopped by a thermocouple that needs repair.


If you do see anything that you think could be a problem then you should contact you local heating engineer to investigate and if required fix, before you try to relight the pilot light.

5. Low Pressure Boiler

Loss of pressure in your boiler could be an indication of a problem with your central heating system itself. You can check the pressure of your boiler by looking at the gauge and checking that it is over 1. If it is not, then there is a problem somewhere within your heating system which need to be checked out by a qualified heating engineer.

6. Problems with the Thermostat

Honeywell Room Thermostat Hyde Park LeedsAn inaccurate thermostat can create numerous issues, so it is important to set a regular schedule (at least once a quarter) to make sure that your thermostat is working as intended. It is a quick check. You simply start by making sure the thermostat is in the correct position and has the right setting and that your boiler switches off when you reduce the temperature setting and back on again when you raise the temperature setting

In Summary

The above problems are the main ones that our engineers are called for. If you are in any doubt at all then it is safer to call a qualified boiler engineer who is on the Gas Safe register  out to have a look and advise you.

If you do have a problem with your boiler and need an Emergency boiler repair then contact our Leeds office and book a call out with one of our local 24 hour emergency boiler engineers.